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Generates case weights for binary data — case_weights • spatialRF

When the data is binary, setting the ranager argument case.weights helps to minimize the issues produced by class imbalance. This function takes a binary response variable and returns a vector of weights populated with the values 1/#zeros and 1/#ones. It is used internally by the function rf().

case_weights(data = NULL, dependent.variable.name = NULL)

data

Data frame with a response variable and a set of predictors. Default: NULL

dependent.variable.name

Character string with the name of the response variable. Must be in the column names of data. Default: NULL

A vector with a length equal to nrow(data) with the respective weights of the cases.

if(interactive()){

 data <- data.frame(
   response = c(0, 0, 0, 1, 1)
 )

 case_weights(
   data = data,
   dependent.variable.name = "response"
 )

 }

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